Blackboard-eraser cleaner.



PATENTBD DEC. 13, 1904 D. s. AUSHEEMAN.

BLAOKBOARD ERASER CLEANER.

APPLICATION FILED FEB. 3, 1904.

NO MODEL.

lUire *rri'rns Patented December 13, 1904.

BL-ACKBUAHD-ERASER ()Lt'EMWEH.

SPECIFICATION forming part of Letters Patent No. 777,582, dated December13, 1904. Application filed February 3, 1904. Serial No. 191,872. (Nomodel.)

To all who/rt it YI'I/(I/Z/ concern:

Be it known that 1, DAVID S. AUsrim-mmv, a citizen of the United States,residing at Zion City, in the county of Lake and State of Illinois, haveinvented a new and useful Blackboard-Eraser Cleaner, of which thefollowing is a specification.

My invention relates to blackboard-craser cleaners, and has for itsobjects to produce a comparatively simple inexpensive device of thischaracter which will be efficient in operation and one in which the dustfrom the erasers will be collected during the cleaning operation.

To these ends the invention comprises the novel features of constructionand combination of parts more fully hereinafter described.

In the accompanying drawings, Figure l is perspective view illustratingmy improved device in operation. Fig. 2 is a detail longitudinalsectional elevation. Fig. 3 is a detail sectional elevation taken atright angles to Fig. 2.

Referring to the drawings, 1 designates a body or support, formed,preferably, from a single piece of board, having at one end a reducedextension or handle 2 and at its other or normally inner end a paddedengaging portion 3, recessed for engagement with the ledge 4: of ablackboard, as shown in Fig. 1. The body 1 has formed therein anelongated chamber 5 of suitable dimensions, the side walls of which arecomposed of wire-gauze or other suitable reticulated material 6,attached to the body 1 and in turn covered by cheese-cloth or othersuitable loosely-woven fabric 7, there being formed at the inner end ofthe body heneath the engaging portion 3 a discharge opening or passage8, leading from the chamber 5 and normally closed by a removable plug orclosure 9.

Hinged or otherwise pivoted to the reduced portion 2 and respectively onopposite sides thereof is a pair of operating members or blocks 10,carrying forward]y-extending engaging deviccs or guides 11, composed,preferably, of wire and each in, form of an elongated U -shaped loop,presenting a pair of spaced parallel rods 12, designed in practice toreceive between them and retain the blackboard-erasers l3and havingtheir rear ends attached by staples or otherwise to the blocks 10.

In practice the erascrs to be cleaned are inserted in the devices orguides ll, which, it is to be noted, he parallel and in transversealinement with the chambe 5. The engaging portion is then seated uponthe ledge 4i, and the operator grasps the blocks 10, as indicated inFig. 1, and manipulates them for swinging the guides 11 back and forthto beat the erasers 13 upon the reticulated sides of the chamber. Duringthis operation the chalk-dust sifts through the said sides and settlesin the chamber, where it is accumulated. After the erasers have beensuiliciently cleaned they are removed from the guides, and the body hasits forward end tilted downward and, if necessary, tapped upon thelioor, thereby causing the accumulatirm of dust to settle in the openingor passage 8 for discharge by removing the closure 9.

From the foregoing it will be seen that I produce a simple ellicientdevice for cleaning blackboard erasers and for collecting thechalk-dust. in attaining these ends it is to be understood that 1 do notlimit myself to the precise details herein set forth, inasmuch as minorchanges may be made without departing from the spirit of the invention.

Having thus described the invention, what is claimed is- 1. In a deviceol the class described, the

combination with a supporting member having a collooting-chamberprovided with reticulated walls, of a pair of eraser-holders pivotallyconnected respectively with opposite sides of the support to swingtoward and from the reticulated walls.

2. .In' a device of the class described, the combination with aS11])1')OI'l3ll1g' member having a collecting-chambcr provided withreticulated walls, of a pair of operating-blocks pivotally connectedrespectively with opposite sides of the support, and a pair oferaserhold ing guides carried respectively by the blocks and eachcomprising a pair of parallel spaced I charge opening leadingtherethrough and members designed to receive the eraser between them.

3. In a device of the class described, the combination with a supportingmember having a collecting-chamber provided with a reticulated wall, ofa pervious fabric covering said wall, an eraser-holder pivotallyconnected with the support to swing toward and from IO the reticulatedwall, said support having a discommunicating with the chamber, and aclosure for said opening.

In testimony that I claim the foregoing as my own 1 have hereto aflixedmy signature in 5 the presence of two witnesses.

DAVID S. AUSHERMAN. lVitnesses:

W. E. SoHoLz, HARRY P. BURNINGHAM.

